baber/WOPTO huggingface dataset:
Patent GB-1458886-A (GB)
Title: Drilling or milling apparatus for the treatment of liv ing  bone especially for dentistry
IPC: A61B17/16
Filed: 1974-06-18
Abstract: 1458886 Drilling or milling apparatus for living bone H KIRSCHNER and W MEYER 18 June 1974 [18 June 1973] 26973/74 Heading A5R [Also in Division B3] Drilling or milling apparatus for living bone, especially for dentistry, comprises a hand-piece enclosing a chamber in which is mounted a drivable shaft 8, a tool in the form of a drill or milling cutter which is connectable to the shaft, and a tube 3 for the supply of cooling liquid to the tool, wherein the tool has a channel 25 for cooling liquid, extending from the proximal to the distal end thereof and opening to the exterior at the distal end, the tube extending through a seal 24 into channel 25, to prevent contact of the cooling liquid with chamber 30 which contains the shaft. The device illustrated is assembled by inserting shank 16 of drill 2 into guiding tube 7 of angle piece 1 until driving face 18 on the shank contacts driving face 11 on hollow shaft 8. Tube 3 is then pushed through seal 24 until horizontal portion 3a contacts the bottom of a groove 14. Locking slide 12 is then pushed to the right whereby a groove portion 14a is pushed over part of tubule 3 and a thickened portion 3c of the tube moves into an enlarged portion 29 of the groove. Shank 16 is fixed by engagement of bolt 13 on slide 12 with a locking groove 19. The device is driven via shaft 5, bevel gear 10 on shaft 5 and meshed bevel gear 9 on hollow shaft 8. In an alternative embodiment the shank is fitted through a guide part and then into an angle piece, the guide part having an additional means of introduction of cooling liquid on the outside surface of the tool. In this embodiment a milling head with orifices between the cutting edges is fitted to the guide part and debris from the milling action is rinsed away by jets from the additional source of cooling liquid.
Patent GB-1065080-A (GB)
Title: Improvements in or relating to aluminium reduction pots
Inventor: RAMSEY JAMES ARCHIE
IPC: C25C3/16
Filed: 1964-06-30
Abstract: <PICT:1065080/C6-C7/1> An aluminium reduction cell has a graphite cathode 14 provided with a steel current collector bar 20 which is slightly tapered at 22 and is provided with one or more longitudinal slots 28, the bar being rammed into a correspondingly shaped convergent socket in the graphite block, where it is held tight by pressure.
Patent GB-650104-A (GB)
Title: Improvements in or relating to colour television systems and apparatus
IPC: H04N11/00
Filed: 1947-10-08
Abstract: 650,104. Television. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Oct. 8, 1947, No. 27041. Convention date, Oct. 9, 1946. [Class 40 (iii)] In a colour television system in which component colours are transmitted and received sequentially, means are provided at the receiver for reproducing the component colour images and presenting them for viewing, such that each component is maintained visible for a time which is substantially equal to the time taken to reconstitute one complete colour image. In the arrangement shown in Fig. 1, colour component signals generated sequentially by known means, e.g. a rotating colour filter F, picture signal generating tube A and conventional transmitter E, are distributed sequentially at the receiver, by means of an electronic distributer C, to the intensitymodulating electrodes of three (for a threecolour system) picture reproducing cathode-ray tubes T1, T2, T3, the screens of each of which are coated to fluoresce in a different one of the colours employed and to have an after-glow time equal to the duration of a complete picture period, the colour pictures thus produced being optically superimposed on a viewing screen P. The optical superposition may be by means of lenses O1 02, 03 or by means of a suitable arrangement of mirrors (not shown).
Patent GB-1439905-A (GB)
Title: Guide tubes
IPC: G01K1/08
Filed: 1974-06-18
Abstract: 1439905 Temperature indication in furnaces SOC DES ACIERS FINS DE L'EST 18 June 1974 [17 July 1973] 27064/74 Heading F4B [Also in Division G1] A refractory guide tube, for insertion in the wall of a metallurgical furnace to guide a temperature measuring rod or observation device inside thefurnace, comprises a substantially cylindrical refractory member 2, having an axial orifice 2a extending therethrough longitudinally along the axis and a plurality of apertures or thin tubes 10 extending longitudinally and therethrough. As described, the member 2 is partially embedded in a substantially cylindrical metal casing 1 having a front plate 4 which, in use, abuts the outer surface of the furnace. The tubes 10 may be spaced at regular intervals within the refractory part 2 and communicate with a first chamber 7 to which may be supplied compressed air via tube 11. A second chamber 8 communicates with orifice 2a and aperture 4b to which may be supplied compressed air. The compressed air issuing through tubes 10 may be controlled so as to ensure that the refractory member 2 wears out at the same rate as the furnace. Compressed air issuing between the measuring rod, for example, and wall of orifice 2a solidifies slag on the end of the rod which may then be broken off by the rod tip. The refractory member 2 may be made of 99 % alumina and 1% binder melting between 1800 and 2000 C. and moulded in situ in casing 1.
Patent GB-519628-A (GB)
Title: Improvements in and relating to prepayment mechanism for the supply of commodities
IPC: G07F15/06
Filed: 1938-09-16
Abstract: 519,628. Prepayment mechanisms for meters ; basic charges. UNITED GAS INDUSTRIES, Ltd., CHARLES, A., and CHRISTIAN, A. J. Sept. 16, 1938, No. 27079. [Class 27] Coin-freed time-controlled apparatus for making a basic or rental charge in connection with the supply of gas or other commodity is provided with a valve or equivalent element controlled by a member which is set forward by prepayment mechanism to establish the supply and is returned in the direction to reduce or interrupt the supply by an electric time-control mechanism operated by a battery. In the construction shown a gas meter a is provided at the inlet side with a valve casing b having a valve c fixed to a spindle d carrying an arm f acted upon by a spring g to close the valve. A stud or roller f<1> on the arm f engages a cam disc h having two paths for the roller, the inner path h<2> being such that when the roller travels thereon the valve is closed and cannot be opened. The cam disc h is fixed to the driven element i of a Geneva stop mechanism the driving member j of which is fixed to one of the sun wheels of a differential or epicyclic gear k, the other sun wheel being driven from a suitable coin mechanism l and the planet-carrier being driven by the time control mechanism m through a worm m<2>. The time control mechanism comprises an electrical clockwork operated by a battery as described in Specification 517,733. The prepayment mechanism may be as described in Specification 392,530, in which two co-axial quantity wheels, contained in the casing l and operated by different coins, are respectively connected to a planet carrier n and a sun wheel o of an epicyclic reduction gear, the other sun wheel q being fixed to one of the sun wheels the epicyclic gear k. Other forms of coin mechanism may be used such as those described in Specifications 387,678, 400,636, and 405,302. An indicator may be provided to show the amount of rental or basic charge that has been prepaid. When the valve is closed and the roller f<1> is travelling on the inner cam path the time control mechanism will continue to operate and the indicator will show the amount of basic charge which requires to be paid before the valve will again be opened to permit delivery of the commodity. Reference has been directed by the Comptroller to Specification 517,733.
Patent GB-1516648-A (GB)
Title: Process for regenerating used polytetrafluoroethylene
IPC: C08F259/08
Filed: 1975-06-26
Abstract: 1516648 Polymerizing monomers on used polytetrafluoro ethylene INST KHIMICHE FIZIKI AKAD NAUK SSSR 26 June 1975 27125/75 Headings C3L and C3P Used polytetrafluoroethylene is regenerated by subjecting used particulate polytetrafluorethylene of particle-size not greater than 100 microns to ionizing radiation before or during contacting of the polytetrafluoroethylene with a monomer of formula C2FxR4-x wherein x = 1 to 4, R is -H, -CF3, Cl, C6H5 or C6F5. Examples are given in which (a) polytetrafluoroethylene is treated with tetrafluoroethylene using gamma radiation, accelerated electrons or plasma treatment; (b) polytetrafluoroethylene is grafted with trifluorochloroethylenes, vinylidene fluoride, or vinyl fluoride or a mixture of tetrafluoroethylene with hexafluoropropene ethylene or perfluorostyrene, or a mixture of vinylidene fluoride with ethylene, or a mixture of trifluorochloroethylene with hexafluoropropene, using gamma radiation.
Patent GB-727691-A (GB)
Title: Method of and apparatus for cooling, suppressing smoke from and lubricating metal working machine tools
IPC: B23Q11/08
Filed: 1952-10-29
Abstract: 727,691. Spray-producers. GULF RESEARCH & DEVELOPMENT CO. Oct. 29, 1952 [Feb. 20, 1952; May 9, 1952], No. 27152/52. Class 69 (3). [Also in Group XXII] A smoke suppressing system for machine tools comprises a distributer 15 for discharging a curtain of fluid to surround and enclose the working section. In a lathe, two distributers 14, 15 are fed from a common supply of oil, water or other liquid or gaseous medium capable of absorbing smoke. The upper distributer 14 has a central orifice 28 and two circular series of staggered orifices 24, 25 and 26, 27. The lower distributer 15 has a circular series of staggered orifices 29, 30 and an annular series 31. In a modification, the upper distributer 116, Fig. 5, has a central orifice 110 and an unbroken annular orifice 118 supplied from a pipe 133. A lower distributer 139 has elongated orifices 140, 141, 142, Fig. 8.
Patent GB-838433-A (GB)
Title: Improvements in or relating to electrical filter circuits
Inventor: KASON JOHN
IPC: H03H7/46
Filed: 1956-09-24
Abstract: 838,433. Filter networks. ELECTRIC & MUSICAL INDUSTRIES Ltd. Sept. 24, 1956 [Sept. 24, 1955], No. 27279/55. Class 40 (8). [Also in Group XL (c)] A filter circuit for use as a terminal unit of a relay system having a common conductor for radio and television signals in different frequency bands includes a rejector circuit to prevent second harmonics from a frequencymodulated sound receiver operating in Band II interfering with a television receiver operating in Band III. The input signals from a common relay conductor are applied to terminals 1 and a low-frequency amplitude-modulated sound receiver is connected across terminals 4 and receives signals through low-pass filter 2, 3. A television receiver for Bands I and III is attached to terminals 7 and receives signals through high-pass filter 5, 6 and a frequencymodulated sound receiver for Band II is connected across terminal 10. A rejector circuit formed by series inductance 8 and capacitance 9 is connected as shown to suppress second harmonic radiation from said frequency-modulated receiver. The rejector circuit is stated to be a high-capacitive impedance for the lowfrequency radio signals and Band I signals and a high-inductive impedance for Band III signals. Capacity 9 is of small value compared with capacity 5 and inductance 6 may be provided by the input inductance of the television receiver.
Patent GB-339940-A (GB)
Title: Improvements in and relating to means for preventing the unauthorized use of motor vehicles
IPC: B60R25/021
Filed: 1929-09-09
Abstract: 339,940. Hargreaves, H. Sept. 9, 1929. Guarding against unauthorized use.-To prevent rotation of the steering shaft T<1> of a motor vehicle, a slidable toothed plate- J is brought into engagement with teeth thereon by rotation through 180� of a hand operated shaft L carrying a cam or tappet C under the control of a permutation lock W. The toothed plate is operated through a yielding link M by a crank or eccentric L<1> on the shaft L, which is provided with an actuating handle H and a portion R of reduced diameter intended to break in the event of forced actuation whilst locked. An arm on the shaft may also be provided to close an earthing switch N connected to tile ignition tube T<2>. The permutation lock comprises a series of lettered or figured cylinders D<1> - - D<4> rotated individually by knobs K<1> - - K<4> and formed with slots which when brought into alignment allow outward movement of a radially slidable element S bearing on the cam C the major radius of which is at 90� to the throw of the crank or eccentric L<1>.
Patent GB-1313998-A (GB)
Title: Light-sensitive colour photographic silver halide material
IPC: G03C7/392
Filed: 1971-04-19
Abstract: 1313998 Light-sensitive photographic silver halide material KOMISHIROKU PHOTO INDUSTRY CO Ltd 19 April 1971 [17 April 1970] 27327/71 Heading G2C A lightsensitive photographic silver halide material or emulsion contains, as agent for reducing graininess of the dye image, a combination of (A) at least one compound of the formula:- Wherein R 1  and each of R 2  and R 3  are H, alkyl having 1 to 4 carbon atoms, an unsaturated chain hydrocarbon residue, aryl or aralkyl, with (B) at least one compound of the formula:- wherein R 4  is H, alkyl having 1 to 4 carbon atoms, or aralkyl and each of X and X' is H, alkyl, alkoxy or halogen. Colour couplers may be incorporated in the material or in the colour developer. The compounds may be in the same or different layers, and may be in the lightsensitive, the layer adjacent thereto or the sub, inter or protective layer, Many examples of these compounds are given.
Patent GB-408219-A (GB)
Title: Production of 6-chloro-o-toluidine
Filed: 1932-10-03
Abstract: 6-Chloro-o-toluidine and its hydrochloride are obtained by monochlorinating o-nitrotoluene, reducing to chlorotoluidines, and separation of 6-chloro-o-toluidine from the mixture as hydrochloride, by crystallization from hydrochloric acid, followed by liberation of the base; the chlorination is preferably effected in presence of antimony pentachloride at from 20 DEG --60 DEG  C. An example is given in which the reduction of the chlornitrotoluenes is effected with iron filings and formic acid, followed by sodium sulphide, the subsequent separation following as described.
Patent GB-856490-A (GB)
Title: Improvements relating to wheels for invalid chairs
Inventor: CRAWSHAW ARTHUR LUMB
IPC: A61G5/10
Filed: 1958-08-27
Abstract: 856,490. Invalid chairs. HUGHES Ltd., G. H. Aug. 4, 1959 [Aug. 27, 1958], No. 27422/58. Class 108(1). An invalid chair hand rail and wheel comprises two arcuate sections 7, 8 joined by an integral web 9 and accommodating a rubber tyre 10 and a hand grip 11. The tyre and hand grip may have an interconnecting web and the hand grip may be moulded round the section 8.
Patent GB-382042-A (GB)
Title: Improvements in luminous electric discharge tubes
IPC: H01J61/52
Filed: 1931-10-02
Abstract: 382,042. Discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand Ges. f³r Elektrische Gl³hlampen ; 11, Ehrenbergstrasse, Berlin.) Oct. 2, 1931, No. 27436. Convention date, Oct. 27, 1930. Addition to 363,092. [Class 39 (i).] A luminous tube, which, according to the parent Specification, has short connecting parts which are arranged in front of the electrode chambers and are adapted to have a higher temperature than the main part of the tube to prevent separation of the constituents of the filling, is modified for use on direct current by forming it with one connecting part in front of one electrode chamber only. The filling may consist of a mixture of vapours, or of gases and vapours, or of gases such as helium, xenon, argon and hydrogen.
Patent GB-361471-A (GB)
Title: Improvements in or relating to sprinkler tops for canisters and other containers
IPC: B65D83/06
Filed: 1931-05-29
Abstract: 361,471. Powder distributers. BRITTAIN, E. G. and SOUTHERN BOX & PAPER TUBE CO., Ltd., Monnow Road, Bermondsey, London. May 29, 1931, No. 27460/30. [Class 18.] The lid of a powder distributing canister &c. comprises a perforated disc a, permanently attached to the body of the container with a row of tongues a3 formed integrally in the flat surface of the disc beyond the circumference of the outer row of perforations a<2> therein, a closure disc b<1> which covers the perforations being held in position by the tongues engaging its edge. The closure disc is of thin strawboard, sheet metal, &c., and the ends of the tongues a<3> are bent over the edge thereof. After this disc has been attached the container is filled from the bottom. The perforated disc a is made from tin plate in dished form, the area of the depressed portion being equal to that of the mouth of the container, and the edge a<1> of the disc is flanged or beaded over the top edge of the container which is made of strawboard &c.
Patent GB-1222758-A (GB)
Title: Bleach composition
IPC: A61K8/22
Filed: 1969-05-30
Abstract: 1,222,758. Bleaching keratinous fibres. FMC CORP. 30 May, 1969[31 May, 1968; 12 Nov., 1968], No. 27515/69. Heading D1P A bleaching composition for human hair or other keratinous fibres contains hydrogen peroxide (or hydrogen peroxide generating compounds e.g. alkali metal percarbonate or perborate) ammonium or alkali metal persulphate and ammonium or alkali metal peroxydiphosphate. It may also contain a water soluble thickener, wetting agents, solvents and buffering agents. The keratinous fibres are bleached by applying an aqueous solution of the composition at 50 to 100‹F and maintaining its pH within the range of 7 to 9.3. The persulphate may be added to the peroxide just before bleaching and then mixed with the diphosphate.
Patent GB-279829-A (GB)
Title: Improvements in or relating to nut or screw connections
IPC: F16B39/36
Filed: 1927-10-18
Abstract: 279,829. Ryck van der Gracht, F. M. P. de, (Assignee of Reuter, M.). Oct. 27, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Locking nuts.-A nut or screw connection comprises an outer element having a conical bore and an inner element having a conical exterior and interior screw thread. The inner element may have a longitudinal slot or slots or saw cut or saw cuts. The loose parts, when there is more than one slot, are held by a wire in an annular groove. The inner and outer parts are prevented from relative rotation as by a pin in registering grooves on the respective conical surfaces. The inner element 1 is secured to suit the thread 7 on the bolt, has a conical exterior and a longitudinal slot 3. The outer element 2 has a conical bore and hexagonal exterior. Grooves 4, 4<1> in the two elements receive a pin 5 for preventing relative rotation whilst permitting relative longitudinal motion. The Specification comprises also the application to socket unions.
Patent GB-864583-A (GB)
Title: Improvements in or relating to dust extractors
Inventor: ROBERTSON-ORR JAMES MALCOLM
IPC: B04C5/12
Filed: 1958-08-28
Abstract: 864,583. Centrifugal separators. GREEN & SON Ltd., E. Aug. 27, 1959 [Aug. 28, 1958], No. 27712/58. Class 23 In a cyclone separator comprising a gas outlet tube 6 and a dust outlet 7, means are provided to deflect dust from entering the outlet tube and returning this dust to the part of the separating chamber surrounding the tube. A deflector 12 deflects the dust into an annulus 9 between a tube 8 and the tube 6, and the dust leaves the annulus adjacent the end plate of the cyclone. A scraper comprising wire. coils 11, 13 is reciprocated to clean the outlet 7 and the annulus. A multi-cyclone separator is shown having a partition 2 carrying the cyclones and separating the inlet chamber 3 and the gas outlet chamber 4, the dust being collected in pipes 15.
Patent GB-738930-A (GB)
Title: Improvements relating to domestic fireplaces
Inventor: MORGAN HARRY WILFRID
IPC: F24B1/183
Filed: 1953-10-09
Abstract: 738,930. Domestic fireplaces. NEW AGE FIREPLACES, Ltd. Sept. 30, 1954 [Oct. 9, 1953], No. 27776/53. Class 126. A domestic fireplace is fitted with a back boiler f of sector or triangular form supported by uprights c<SP>1</SP> on a firebrick member c so that its curved or inclined face f<SP>1</SP> is spaced from a firebrick or block d<SP>1</SP> having a similarly curved or inclined face so as to provide an upwardly curved or inclined flue g, the remaining flat faces f<SP>2</SP>, d<SP>3</SP> of the boiler being respectively disposed vertically at the back of the fireplace and horizontally beneath the usual forwardly inclined fireback i. A metallic frame h may be arranged to provide a forwardly inclined flue h<SP>1</SP> into which the flue g delivers and which is controlled at its upper end by a damper h<SP>2</SP>.
Patent GB-814585-A (GB)
Title: Improvements in or relating to container closing apparatus
IPC: B67B3/20
Filed: 1957-09-04
Abstract: 814,585. Closuring containers. OWENSILLINOIS GLASS CO. Sept. 4, 1957 [Sept. 6, 1956], No. 27865/57. Class 125(2). In apparatus for applying screw closures C to containers B, rotatable chucks 23 each have a flexible sleeve 45 expanded inwards to grip the closure by compressed air and withdrawn therefrom by a vacuum after closuring. As shown, the containers are fed from and to a conveyer 16 and to and from a rotatable closuring machine 15 by star wheels 18, 27 and the closures are fed by pins 21 on a rotating plate 19 on to a stationary shelf 22 at the entry end of the machine 15. The chuck 23, carried on a stem 39, is lowered by a cam 54 and follower 55 at this point to pick up the closure and sleeve 45 is made to grip it by compressed air fed through pipe 76, Fig. 1, groove 77 in a fixed ring 69, duct 68 in rotating ring 64, Fig. 3, hose 65, a bore in a chuck stem 40 and ducts 52, 44 in the chuck itself. The chuck is then lowered on to the container and rotated by air motor 59 which drives stem 40 through gears 61. Air for the motor is supplied through pipes 78 to groove 79 in ring 69, duct 63 in ring 64, and hose 62. The screwing up pressure is varied by altering the air pressure to pipes 78 and hence the stalling point of motor 59. After closuring, vacuum is applied to the sleeve 45 from pipe 81 and groove 80 in ring 69 to withdraw it from the closure and the chuck is lifted again by the cam 54. During its progress through machine 15, the container is maintained in an atmosphere of steam supplied from distributers 29.
Patent GB-279471-A (GB)
Title: Improvements in air motors
IPC: F01B17/00
Filed: 1927-10-20
Abstract: 279,471. Hohensinn, A. Oct. 20, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Vapour engines.-In an engine worked by liquefied air the inlet and outlet of the liquefied and expanded air respectively are controlled by tappet-actuated lift valves. In one construction the exhaust valve is operated by a perforated float. The liquid air is normally gasefied by sprays of hot water supplied by an atomizing-pump worked by the engine, or longitudinal heating-tubes arranged in spiral headers may be arranged in the power cylinder. The liquid air may enter a body of hot water in the cylinder in the form of a fine spray.